Vail, Colo. (AP) Vail is telling weeds to bug off.
Instead of goats, the town is using tiny bugs to stop the spread of the Canada Thistle.
Earlier this month, workers released 100 Gall flies on a patch of Canada Thistle.
The flies lay eggs that burrow into the stem of the weed and then bulge up inside the plant.
Mark Stricklan, who works at the State Insectary in Palisade where the insects are bred, says the flies reduce the vigor of the plant.
Stricklan says the bugs only eat Canada Thistle, so there should be little risk of them overtaking the town.
The flies are just part of chemical-free weed control in Vail.
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